Pump



July 5, 1932. F. J. MILLER PUMP Filed Sept. 20. 1929 FRANK J? MILLER.

INVENTOR.

BY mam ATTORNEY.

Patented July 5, 1932 UNITED STATES FRANK J. MILLER, OF HOLLYWOOD,CALIFORNIA PUMP Application filed September 20, 1929. Serial No.393,898.

The invention relates to a pumping device for raising liquids from wellsand particular ly to devices where the liquid is raised by fluidpressure.

It is one of the objects of the invention to devise a mechanism whichmay be readily inserted into the well bore whereby pressure may beexerted upon the liquid being raised.

Another object of the invention is to devise 1 a novel seat for thetubing.

A still further object of the lnvention is to arrange an automaticallyoperable valve within the pump tubing.

It is also an object of the invention to devise a mechanism which willoperate autoner that the single movable element may be readily removed.

Another object'of the invention is to devise a seat in the Well borewhich will permit a fluid pressure to be exerted at a point below theautomatic valve mechanism.

Other and further objects of the invention will be readily apparent tothose schooled in the art to which the invention appertains when thefollowing description is considered in connection with the accompanyingdraw- Fig. 1 is a more or less diagrammatic View of my improvedmechanism installed 1n a well, certain parts being broken away and shownin section for purposes of clearness.

Fig. 2 is an enlarged sectional view with certain parts broken away toshow the detailed construction of the valve and seating structure.

By having reference to Fig. 1 a well bore is indicated at 2 and is hereshown as having the usual casing 3 therein. This casing has a casinghead such as t mounted at the top thereof. This casing head may be ofany desired construction but I have shown it as provided with inlet oroutlet pipes 5 and 6 whiclLare each shown as being equipped with ashutoff valve 7. Mounted on the casing head 4 is shown a bushing 9fitted with a tapered collar or holding member 10. This manner desired.I have shown an inlet 16 provided with a valve 17 to the space betweenthe pipe 11 and the tubing 12. It is to be understood that the tubing 12leads off to a storage tank or pipe line as desired in any manner toreceive the liquid from the well.

By having reference to the lower portion of Fig. 1, I have shown thepipe stringll as broken away to illustrate the arrangement of the valveseat. Fig. 2, however, shows an enlarged sectitonal' view of thisstructure. The pipe 11 is provided on its inner surface with an annularring 20 which is preferably fixed rigidly to the pipe section 11. Thisring has a plurality of openings 21 therein to which the pressure tubes22 are connected. These tubes extend downwardly and inwardly to a Tcoupling 23. The coupling 23 has a nozzle 25 fixed to the T outlettherefrom. This nozzle 25 may be of any desired length or size toaccommodate the conditions existing in any particular well.

I have shown a plug 27 as being fixed on the nozzle 25. The structurewhich has just been described is all mounted within the pipe section 11and lowered into the well. It is to be understood that the distancebetween the ring 20 and a'nozzle 25 may be varied" to obtain the mostefficient production of liquid. It will be noted that this structurecontains no moving parts but may be inserted into the well and remainthere permanently.

Fig. 2 also shows the construction of the automatic Valve and pressurenozzle-which form the novel construction of my pump. The tubing is shownat 12 and has fixed on its outer surface a tapered collar 30. Thiscollar is adapted to fit upon the tapered seat 31 of the ring 20. Inthis manner theweight of the tubing will be supported upon the ring 20.It will benoted, however, that the tubing 12 extends below the collar 30and is threaded at 32 in a manner to be attached to the plug 27 whichhas an opening 52 therein to fit over the nozzle 25. The tubing 12 islowered into the Well inside of the string of pipe 11 until the lowerend comes in contact with the nozzle 25. It may then be moved downwardlyuntil the tapered ring engages in its seat 31. This will form a tightconnection at the lower end of the tubing and will form a chamber 33 inthe pipe 11 below the ring 20. A plurality of openings 35 have beenshown in the tubing 12 to permit the entrance of the liquid from thestrata and from the area within the easing 3. WVith this arrangement itwill be seen that no liquid from the well is intended to enter the spacebetween the string 11 and 12 and above the ring 20.

Within the tubing 12 I have shown a flange to which is fixed a dischargenozzle 41. This insert is shown as tapered and conical in form andarranged to discharge upwardly. Above the upper end of this nozzle 41 Ihave shown a ring valve 43 which is adapted to sit upon a shoulder 44and is normally retained in a seated position upon the upper end of thenozzle 41 by means of a spring 45. A band 46 is shown as arranged withinthe tubing to form an abutment for the upper end of the spring 45. Asmall flange 47 is shown on the valve to retain the spring in properposition. A plurality of openings 50 are shown in the string of tubing12 at a point below the valve 43 and above the ring 20.

The operation of my improved pump is as follows:

A fluid pressure may be forced through the inlet pipe 16 into the areabetween the tubin and the string of pipe. This pressure wifi passthrough the openings 21 and the pipe 22 and be discharged through thenozzle 25. This discharge of fluid will pass upwardly through the nozzle41 and any accumulation of liquid in the tubing 12 will be raisedupwardly to the surface. Any additional liquid flowing into the well mayenter the opening 35 and be forced upwardly by the fluid pressure. Bythis arrangement it will be seen that a fluid pressure upon the inlet 16will serve to raise a considerable quantity of liquid. However, when therock pressure decreases or the amount of liquid in the well is small itmay be desired to provide an additional means of raising the liquid andto acoomplish this I have provided the automatic valve arrangement 43.

It will be noted that this valve sits on top of the tapered dischargednozzle 41 and is normally held in seated position by the spring 45.However, when the fluid pressure through the inlet 16 is increased thepressure will increase between the pipe and the tubing and will passthrough the opening 50. When this pressure exceeds the pressure in thetubing and resistance of the spring 45 the valve 43 will be raised fromits seat on the discharge nozzle 41. As the valve rises away from itsseat an additional flow of fluid will occur past the nozzle 41 andassist in raising the fluid from the well.

It is believed that the arrangement of the present structure is ofparticular advantage in wells which are heading and which flowintermittently under a constant fluid pressure as the additional flow offluid through the openings 50 will serve to lift the additional head ofliquid which occurs periodically in the well.

The inlets and outlets 6 and 7 are provided so that if desired apressure may also be exerted between the casing 3 and the string of pipe11 or they may be used to force an additional supply of fluid into thewell bore if desired.

Having thus described the invention what I desire to secure by LettersPatent is 1. In a pump, a pipe, a tubing therein, a

ring on said pipe adjacent the lower end, means to make a seal betweensaid ring and said tubing, a nozzle at the lower end of said tubing andmeans connecting the space above said ring with said nozzle wherebyfluid may be projected up through said nozzle, a Venturi passage abovesaid nozzle, and means to flow fluid upwardly outside said Venturipassage within the said tubing.

2. In a pump, a pipe, a tubing therein,

means to allow pressure fluid to be forced downwardly between saidtubing and pipe, a ring on the inner side of said pipe adjacent thelower end of said tubing, a tapered seat in said ring, means on saidtubing to fit said seat, tubes to conduct fluid from above said ring tothe lower end of said tubing, said tubing having inlet openings inaddition to said tubes above said ring and an upwardly opening valveresisting the entrance through said openings with a predeterminedpressure.

3. In a pump, a pipe, a. tubing spaced inside said pipe, a nozzleextending into the lower end of said tubing axially thereof, a fluidconducting line from said pipe to said nozzle, an upwardly taperedpassage above said nozzle, an. inlet to said tubing at the lower end ofsaid passage and outside said passage, and a ring valve controlling thepassage of fluid to said tubing from said inlet at the upper end of saidpassage.

4. In a pump, a pipe, a tubing spaced inside said pipe, a nozzleextending into the lower end of said tubing axially thereof, a. fluidconducting line from said pipe to said nozzle, an upwardly taperedpassage above said nozzle, an inlet to said tubing at the lower end ofsaid passage and outside said passage, and a ring valve controlling thepassage of fluid to said tubing from said inlet at the upper end of saidpassage, said passage being flared out wardly through said valve to forma Venturi chamber.

5. In a pump, a pipe, a tubing spaced inslde said pipe, a nozzleextending into the lower end of said tubing axially thereof, a

fluid conducting line from said pipe to said nozzle, an upwardly taperedpassage above said nozzle, a ring valve closing the space about theupper end of said passage and said tubing, and means to hold said valveresilient- 1y seated, there being an inlet through the Wall of saidtubing to said space.

In testimony whereof I hereunto afiix my signature this 5th day ofSeptember, A. D.

FRANK J. MILLER.

